Abstract: A dielectric fitting (10, 10?, 110) assembly includes a hose (14, 114) connected between two end fittings (12, 121, 112), and a structural reinforcement portion having at least an inner layer (26, 26?,126) formed of a first composite material having a high strength and a second composite material having a high electrical resistance. The first and second composite materials cover the assembly and provide a smooth transition of radial stiffness as the inner layer transitions from a high strength portion to a high electrically resistant portion.

Abstract: A dielectric fitting (10, 10?, 110) assembly includes a hose (14, 114) connected between two end fittings (12, 121, 112), and a structural reinforcement portion having at least an inner layer (26, 26?,126) formed of a first composite material having a high strength and a second composite material having a high electrical resistance. The first and second composite materials cover the assembly and provide a smooth transition of radial stiffness as the inner layer transitions from a high strength portion to a high electrically resistant portion.

Abstract: Composite tubes may be fabricated by filament winding a layer of resin impregnated carbon fiber with a near-axial fiber orientation over a mandrel and over end-fittings. Bands of resin-impregnated fibers are then wound circumferentially around this near-axial layer in a position that coincides with a circumferential groove in the underlying end-fittings. The ends of the near-axial layer are folded back over the bands, resulting in a double layer of intact near-axial fibers locked into the groove on the end-fittings by the bands of intact circumferential fibers. Testing has shown this arrangement to be effective for introducing very high axial loads onto the composite tube.

Abstract: The invention relates to a hydraulic valve assembly having a cartridge insert valve in a bore hole designed in a valve block and connected to the flow channels arranged in the valve block comprising a valve sleeve inserted in the bore hole and a closing member guided into said sleeve, wherein the valve sleeve forms a valve seat for the closing member in the closing position thereof and the closing member can be moved by means of a connected hydraulic pre-control between the closed position thereof seated on the valve seat and separating the flow channels from one another, and an opened position pushed into the valve sleeve, and the bore hole is sealed tight by the cartridge insert valve inserted the rein via a valve cover connected to the valve block.

Abstract: Composite tubes may be fabricated by filament winding a layer of resin impregnated carbon fibre with a near-axial fibre orientation over a mandrel and over end-fittings. Bands of resin-impregnated fibres are then wound circumferentially around this near-axial layer in a position that coincides with a circumferential groove in the underlying end-fittings. The ends of the near-axial layer are folded back over the bands, resulting in a double layer of intact near-axial fibres locked into the groove on the end-fittings by the bands of intact circumferential fibres. Testing has shown this arrangement to be effective for introducing very high axial loads onto the composite tube.

Abstract: A connection assembly for a hose end. The assembly includes a fitting, a connector, and a shell formed of a pair of closable halves. The a fitting includes a nipple having a first end insertable in the hose end and a second end, a flange surrounding the nipple, and a sleeve disposed over the nipple first end. With the hose end being inserted between the sleeve and the nipple, the second nipple end being slidably received coaxially in the connector, and the shell halves being closed over the fitting with the flange being received in a first cavity portion thereof, and with the connector being received in a second cavity of the shell, the fitting is slidably movable in the shell responsive to fluid pressure from a release position to a locked position wherein the flange interferingly engages the first cavity portion preventing the shell halves from being opened.

Abstract: Assembly for connecting a pipe having a flanged end in fluid communication with an opposing part. The assembly includes an insert received coaxially within the pipe end and having a forward end face extending axially beyond the pipe end, a clamp ring received coaxially over the pipe end, and a flange piece which is fastenable to the opposing as received coaxially over the clamp ring. As the flange piece is fastened to the opposing part, the forward end face of the insert is urged into a sealable engagement against a confronting surface of the opposing part.

Abstract: The invention relates to an actuator for actuating a valve installed in a hydraulic or compressed air system comprising a coil support which can be displaced by means of air space induction in a magnetically conducting housing on a magnetic cylinder composed of a permanent magnet and a cylinder pole disk. The invention is characterized in that the dimensions of the permanent magnet and the pole disk correspond to each other in such a way that the diameter of the front surface of the permanent magnet is at least the same size as the circumferential surface of a neighboring pole disk and that the width of the coil associated with the pole disk exceeds the width of the pole disk by the lift amplitude of the coil support.

Abstract: A cutting installation for a fabric web comprising an unwinding unit, a downstream dancer unit serving as a buffer, and a downstream cutting frame with a cutting unit disposed thereon. At least two gripper beams extending parallel to the cutting unit and guided along a lateral rail arrangement are displaceable across the longitudinal extension of the cutting frame, and each gripper beam on one side is carried by a first support tower which is displaceable along the rails, and on its opposite end is provided with a telescopically extendable extension piece. The extension piece can be docked with a second support tower arranged on the opposite side and traveling along. The support towers are adapted for adjusting the height of the respectively carried gripper beam, such that each gripper beam, as it moves along the cutting frame, can travel over the other gripper beam.

Abstract: A fuel injection valve for a fuel injection system of an internal combustion engine includes a valve housing which is sealed off from an intake tube of an engine by a seal having a bead and a funnel-shaped cuff embodied on the bead, the projecting edge of which cuff is turned-under radially inward.

Abstract: A signal processing unit for a pressure switch or the like, comprising a sensor element, such as a strain gauge bridge, to supply an analog electrical signal that corresponds to a pressure; a signal processing unit which is connected downstream of the sensor element to amplify and digitize the analog signal; and a control unit for electrical switches which is connected downstream of the signal processing unit to switch external loads or the like. According to the invention, the signal processing unit comprises a chopper amplifier, which switches or balances the polarity of the analog electrical signal present at its input and supplied by the sensor element, and the amplified analog electrical or digitized signal present at its output, at the same clock rate.

Abstract: The invention relates to an actuator for actuating a valve installed in a hydraulic or compressed air system, comprising a coil support which can be displaced by means of air space induction in a magnetically conducting housing on a magnetic cylinder composed of a permanent magnet and a cylinder pole disk. The invention is characterised in that the dimensions of the permanent magnet (16) and the pole disk (17) correspond to each other in such a way that the diameter of the front surface of the permanent magnet (16) is at least the same size as the circumferential surface of a neighbouring pole disk (17) and that the width of the coil (23) associated with the pole disk (17) exceeds the width of the pole disk (17) by the lift amplitude of the coil support (19).

Abstract: The invention relates to a device for forming an end area of a workpiece (2), especially for cold press-forming an end area of a pipe, comprising two force transmitting elements (7, 9) which are guided in a common housing (3). The device is characterised in that a first pressure chamber (26) is located between the two force transmission elements (7, 9) and in that a second pressure chamber (28) is allocated to the second force transmission element (9). When the first force transmission element (7) is in the bracing position, the second force transmission element (9) can be displaced in relation to the first force transmission element (7) in order to form the workpiece.

Abstract: An axial piston pump of the swash-plate variety having a rotating cylinder block and pistons movable in a longitudinal direction within bores formed in the block, and having a reversing capacitance for reducing pressure pulsations. For the further reduction of such pulsations, one or more channels, each having an associated discharge opening, are formed into a web of the valve plate of the pump to sequentially couple the reversing capacitance into fluid communication with the cylinder bores passing across the web.

Abstract: In an axial piston pump having an oblique disk, the axial piston pump includes a piston drum with pistons disposed therein that are displaceable by way of a holder that runs along the oblique disk. The angle of engagement of the oblique disk can be increased. On the outer side of a spherical adjustment surface provided on a component of a shaft, there are at least two glide blocks that are rotatable about a rotational mount and that exhibit an axial extent with respect to the drive shaft axis. For the purpose of transmitting torque from the drive shaft to a holder, the glide blocks are engaged with grooves that are provided in the holder, and in particular in the wall of the holder that circumscribes a receiving bore of the holder.

Abstract: A device is disclosed for controlling a double-effect working cylinder (10) having a piston (11) with a piston rod (12) on a single side by means of a multiple-way valve (19), in which the available forces are to be fully applied in the extended end position of the piston rod (12). The multiple-way valve (19) has seven connection openings (P, A1, A2, B1, B2, T1, T2) for controlling the predetermined function, which can be driven in the individual working position by means of a corresponding valve piston (20).

Abstract: A device is disclosed for controlling a double action working cylinder (10) having a piston (11) with a piston rod (12) on a single side by means of a multiple-way valve (19), in which the available forces are to be fully applied at the beginning of the extension of the piston rod (12) and the differential motion becomes effective after a fixed distance of displacement of the piston. The multiple-way valve (19) has seven connection openings (T1, A1, P, B1, A2, T2, B2) for driving the predetermined functions, which can be driven in the individual working position by means of a valve piston (20) provided with seven control edges (1-7).

Abstract: A kink-resistant hose construction adapted for conveying fluids under high pressure which is flexible intermediate a central longitudinal axis to a minimum bend radius. The construction includes a thermoplastic core having an inner surface defining the inner diameter of the hose and an outer surface, and an innermost reinforcement layer disposed radially circumferentially about the outer surface of the core. The innermost reinforcement layer is formed as a composite of at least one metallic wire element and at least one non-metallic fiber element. The metallic wire element is wound helically in one direction over the outer surface of the core at a predetermined pitch angle measured relative to the longitudinal axis to define a series of first turns. Each of these first tuns is spaced-apart from an adjacent first turn to define successive pairs of first turns each having an interstitial area therebetween.